Unmanned aerial vehicle with undercarriage convenient to fold and unfold

The invention relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle with undercarriages convenient to fold and unfold, the unmanned aerial vehicle comprises a fuselage, two undercarriages are hinged to the bottom of the fuselage, two fixing blocks are fixedly connected to the bottom of the fuselage, and fixing mechanisms are arranged on the fixing blocks and the undercarriages. The fixing mechanism comprises a round block, a sleeve, a limiting rod, a first spring and a limiting groove, one side of the outer wall of the fixing block makes contact with one side of the outer wall of the undercarriage, the limiting groove is formed in the undercarriage, and one side of the limiting rod penetrates through the fixing block and extends into the limiting groove. The side, close to the first spring, of the round block is fixedly connected with the other end of the limiting rod. According to the unmanned aerial vehicle with the undercarriage convenient to fold and unfold,